... and increase production target to 0.5 Bscf/day. Gas condensate is contained in high-permeability (150 – 1,000 md) sandstone reservoirs between 8,000 and 15,000 ft subsea depth. There are a total of 14 producing gas wells with 15 producing intervals (including one dual string, dual completion). Three gas...

... Abstract Accurate prediction of gas critical rate is critical to the successful management of gas wells. This paper covers the prediction of gas critical rate and presents limitations of old models with gas condensate wells with water-cut reversal. Comparison of prediction methods or models...

... Abstract Accurate prediction of pressure gradient in gas wells is the theoretical basis of gas well performance analysis, production optimization and deliquification technologies design. Experiment is the best access to characterize the flow behavior of gas wells. For low-pressure experimental...

... intelligence machine learning enhanced recovery hydraulic fracturing reservoir simulation reserves evaluation compressibility reservoir characterization reservoir surveillance drillstem testing pressure transient testing drillstem/well testing gas well pressure transient analysis production...

.... During 2019, more than 30 wells were mechanically cleaned using slick line to remove scale every 30 days approximately. This paper describes the study of the origin of scale in gas wells producing from multiple formations and the chemical technology applied to solve this problem in the mature urban field...

... during well operation. Moreover, the undoubted advantage of marker monitoring is its long-term nature since the technology allows continuous downhole data obtaining within several years. The subject of this work is a gas well with an extended horizontal wellbore, in which the 18-stage hydraulic...

... Abstract This paper presents a semi-analytical method based on an integral formulation derived through Green’s Function Method to model multi-fractured horizontal gas well (MFHWs) production performance experiencing fracture interference. The nonlinear effect of retaining pressure-dependent gas...

... Abstract As the economic importance of natural gas continues to grow because of its relatively clean output, the exploitation of natural gas wells is of increasing importance in the energy industry. Monitoring of these gas wells is key and the Static Bottom Hole Pressure is an integral...

... Abstract Plunger lift has been widely used in unconventional gas wells to remove liquid accumulation from the well.. Production surveillance provides large amount of data of production process and normal and abnormal operations, which can be used in machine learning (ML) and Artificial...

... was more accurate. Physical experiments indicate that results from the proposed method match the test results closer than the standard approach. well control Upstream Oil & Gas intercept intersection annular pressure drilling gas well relief well kill BPM kill rate requirement wellbore...

... It is important for us to briefly describe the various mechanisms at work in flow of a gas well and introduce the topic of liquid-loading in gas wells. Liquid hold up in a gas well can be a severe problem with falling gas flow-rates in gas condensate wells. As the reservoir depletes, the gas flow...

... Abstract This paper investigates the impact of high-rate production on well performance of a cased-hole gas well with a fracpack type of completion. We modeled fluid dynamics in the near wellbore region, where the most drastic changes in pressure, velocity and temperature are expected to occur...

... delay into account, an upper temperature limit was established when perforating gas wells with the 7.0-g HMX-shaped charges inside 2.0-in. OD perforating guns. In addition, penetration performance for the HMX charge at various temperature levels was generated and then compared to baseline performance...

... Abstract Due to the increase of global gas demand and the evolution of tight and shale gas development, thousands of multilateral gas wells have been drilled in the last decades. A multilateral well is defined, in general as a well with multiple branches in the lower borehole targeting oil...

... Abstract Liquid loading, a common problem in matured gas fields, is investigated experimentally in highly deviated gas wells. The experiments were carried out using air and water in a 3-in ID pipe at well deviation from 60° to 88° from vertical. Pressure gradient and liquid holdup were measured...

... Abstract The offshore Wheatstone LNG Project in Western Australia utilizes subsea big-bore gas wells as the preferred method of producing the field. Wheatstone wells use a 9–5/8” production conduit from the top of the gas pay zone to the ocean floor. Well bores of this size are necessary...

... reserves evaluation numerical simulation decline rate gas well Oil Well production control production forecasting shale reservoir decline curve reservoir flow regime production performance production history equation Arp equation Introduction The development of unconventional...

... as possible. Fig. 1 shows the various flow regimes observed on the rate normalised pseudo-pressure plot from a typical gas well during flowback. The physical interpretations of the observations from this plot are summarized below. The early flowback period is generally noisy. This could...

... Abstract Proper design of gas wells requires accurate estimation of pressure profile. This task is usually carried out by integrating mechanistic models and correlations along the well trajectory. Gray (1975) correlation is widely used for gas wells where the liquid fraction is usually low...

... Abstract In a number of mature gas fields in the Southern North Sea there are several multilateral open-hole completions that have proven to give significant solids/pebble production problems. Since the onset of production six out of seven total multilateral open-hole gas wells had to be shut...